Helen spent $20 on a coat. She spent ²₉ of her remaining money on a windbreaker and a jumpsuit, after which half her money was left.

1. What fraction of her money did she spend on the coat?
2. The cost of the jumpsuit is ¹₃ the cost of the windbreaker. How much more does the windbreaker cost than the jumpsuit?

Coat	Remaining amount
	Windbreaker	Jumpsuit	Left
$20	2		7
1x7			1x7
5 u	2 u		7 u

(a)
The amount of money left is repeated. Make the numerators the same LCM of 1 and 7 is 7. 

1x72x7 of total money = 79 of remaining amount
714 of total money = 79 of remaining amount

Fraction of her money that she spent on the coat
= ^Coat_Total 
= ⁵₁₄ 

(b)
Cost of the coat = 5 u

5 u = 20

1 u = 20 ÷ 5 = 4

Cost of the windbreaker and the jumpsuit
= 2 u
= 2 x 4
= $8

Cost of the jumpsuit = 1 p
Cost of the windbreaker = 3 p

Total cost of the jumpsuit and the windbreaker 
= 1 p + 3 p
= 4 p

4 p = 8

1 p = 8 ÷ 4 = 2

Amount that the windbreaker was more than the jumpsuit
= 3 p - 1 p
= 2 p
= 2 x 2
= $4

Answer(s): (a) ⁵₁₄; (b) $4